A highly granular silicon-tungsten electromagnetic calorimeter (SiW-ECAL) is the reference design of the ECAL for International Large Detector (ILD) concept, one of the two detector concepts for the detector(s) at the future International Linear Collider. Prototypes for this type of detector are developed within the CALICE Collaboration. During the last year a highly compact digital readout system has been built. The system has been used for the first time in a beam test in Summer 2019 at DESY. This article summarises the main features of the system and report on its performance during the beam test.

中文翻译：

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CALICE SiW ECAL——高度紧凑的数字读出系统的开发和性能

高粒度硅钨电磁量热计 (SiW-ECAL) 是国际大型探测器 (ILD) 概念的 ECAL 的参考设计，这是未来国际直线对撞机探测器的两个探测器概念之一。这种探测器的原型是在 CALICE 合作中开发的。在去年，一个高度紧凑的数字读出系统已经建成。该系统已于 2019 年夏季在 DESY 的光束测试中首次使用。本文总结了该系统的主要特点并报告了其在光束测试期间的性能。